Revert "add some instructions for ios test (#79097)"
This reverts commit e1534e3fe7ac48203fb13e3d62c6389c9a52212d.
Reverted https://github.com/pytorch/pytorch/pull/79097 on behalf of https://github.com/kit1980 due to ios tests failed on both PR and trunk, see https://hud.pytorch.org/pytorch/pytorch/commit/e1534e3fe7ac48203fb13e3d62c6389c9a52212d
